Louis G Hector

US Patent:

20050247687, Nov 10, 2005

Filed:

May 4, 2004

Appl. No.:

10/838607

Inventors:

Pei-Chung Wang - Troy MI, US
Hai-Lung Tsai - Rolla MO, US
Louis Hector - Shelby Township MI, US

International Classification:

B23K009/00

US Classification:

21913700R

Abstract:

An article suitable for arc-welded metallurgical bonding having a first part having a lower surface, and a second part having an upper surface is disclosed. The lower surface of the first part is disposed at the upper surface of the second part to provide for a faying surface thereat. The faying surface has a plurality of channels with a depth equal to or greater than about 1 micron and equal to or less than about 1000 microns. The article is suitable for arc-welded metallurgical bonding at the faying surface. The plurality of channels has a repetitive pattern of channels arranged along a path of the faying surface in a direction of the metallurgical bonding action.

US Patent:

20080202637, Aug 28, 2008

Filed:

Feb 23, 2007

Appl. No.:

11/678098

Inventors:

Louis G. Hector - Shelby Township MI, US
Andrew M. Mance - Royal Oak MI, US
William R. Rodgers - Bloomfield Township MI, US
Pablo D. Zavattieri - Ann Arbor MI, US
David A. Okonski - Lake Orion MI, US
Elena Sherman - Culver City CA, US

Assignee:

GM Global Technology Operations, Inc. - Detroit MI

International Classification:

C23C 8/02

US Classification:

148280, 148281

Abstract:

Methods for improving adhesion between a shape memory alloy and a polymeric material include functionalizing a surface of the shape memory polymer with a phosphorous containing compound or an organosilane coupling agent. Other methods include surface texturing the shape memory alloy surface, independently or in combination with the functionalization.

US Patent:

55081193, Apr 16, 1996

Filed:

Sep 7, 1994

Appl. No.:

8/302365

Inventors:

Shen Sheu - Murrysville PA
Louis G. Hector - Murrysville PA
Joseph M. Gorman - Verona PA

Assignee:

Aluminum Company of America - Pittsburgh PA

International Classification:

B21D 5300
B21B 2702
B23K 2602

US Classification:

428687

Abstract:

A method of making a strip product having a surface that is both bright and clean after being rolled by work rolls in a roll stand. The work rolls are polished to remove grind lines from the roll surfaces, and the roll surfaces are provided with minute, ovoid depressions having relatively shallow slopes extending in the direction of rolling, followed by steeper slopes at the opposite ends of the depressions. The depressions are created by a laser beam directed against the roll surfaces at oblique incidence to the roll surface normal during relative movement of the beam and roll surfaces. The roll surfaces are then polished to remove any roll material that is raised above the nominal surface of the rolls, the raised material being the result of melting of the roll surfaces and the deposition of roll material vaporized by the laser beam. The strip is reduced in thickness with such textured rolls without substantial micromachining of the surface of the strip such that the generation of wear debris and smudge is minimized in reducing the thickness of the strip.

US Patent:

49961136, Feb 26, 1991

Filed:

Apr 24, 1989

Appl. No.:

7/342300

Inventors:

Louis G. Hector - Monroeville PA
Shen S. Sheu - Murrysville PA

Assignee:

Aluminum Company of America - Pittsburgh PA

International Classification:

B21D 5300
B21B 2702
B23K 2600

US Classification:

428600

Abstract:

A method for rolling material between rotating rolls utilizing a lubricant, at least one of the rolls having an anistropic working surface that comprises a topography of smooth bearing areas spaced apart by at least one micron-size groove extending around and along the face of the roll in the general direction of rolling. The groove receives and conducts lubricant freely therealong during the rolling process, i. e. , as the material to be rolled is directed through the rotating rolls, and is compressed between the rolls, the smooth-bearing areas force lubricant from the areas to the location of the groove in the roll. In this manner, the material is rolled under boundary lubrication conditions.

US Patent:

52503640, Oct 5, 1993

Filed:

Feb 3, 1992

Appl. No.:

7/829484

Inventors:

Louis G. Hector - Murrysville PA
Simon Sheu - Murrysville PA

Assignee:

Aluminum Company of America - Pittsburgh PA

International Classification:

B21D 5300

US Classification:

428687

Abstract:

A metal sheet for making rigid container products, and a method of making the sheet. The sheet has a fissureless surface that retains minute amounts of lubricant in generally uniformly spaced apart elongated micron-sized depressions, the depressions providing a quasi-isotropic surface texture which, in turn, provides a substantially uniform distribution of friction at the interface of the surfaces of the sheet and a tool employed to form the container products. The depressions, in addition, provide the product surface with a high degree of specular reflection of light and thus a bright surface having a high level of distinctness of an image reflected from the surface.

US Patent:

55378510, Jul 23, 1996

Filed:

May 4, 1994

Appl. No.:

8/238249

Inventors:

Shen S. Sheu - Murrysville PA
Louis G. Hector - Murrysville PA

Assignee:

Aluminum Company of America - Pittsburgh PA

International Classification:

B21B 124

US Classification:

723662

Abstract:

A bright rolled metal strip product having a surface that contains multiple microscopic raised prows formed by partial back extrusion of strip material into smooth, bowl-shaped depressions provided in a work roll surface. The prows are formed by smearing of the strip surface that results from the relative velocities of the strip and work rolls that occurs when massive reductions are taken in the thickness of the strip by the work rolls.

US Patent:

50255479, Jun 25, 1991

Filed:

May 7, 1990

Appl. No.:

7/520307

Inventors:

Shen Sheu - Murrysville PA
Louis G. Hector - Monroeville PA

Assignee:

Aluminum Company of America - Pittsburgh PA

International Classification:

B23P 2500

US Classification:

295274

Abstract:

A method of rolling metal in a plurality of rolling stands with each of the stands having two or more rolls. The method includes first polishing the surfaces of the rolls to a mirror finish, after which the roll surfaces are textured with a plurality of minute micron size craters. The roll surface and craters are then coated with a dense, hard material before the rolls are lubricated and used to reduce the thickness of the metal in the stands. To this end, the metal is directed through the stands, the craters being capable of retaining and carrying lubricant into the bites of all of the rolls without substantial adherence of metal to the roll surfaces and without substantial generation of wear debris on the surfaces of the rolls and rolled material.